EP2292601B1 - Phenanthro[2,3-b]pyrrole und Phenanthro[3,2-b]pyrrole für organische lichtemittierende Vorrichtungen - Google Patents

Phenanthro[2,3-b]pyrrole und Phenanthro[3,2-b]pyrrole für organische lichtemittierende Vorrichtungen Download PDF

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EP2292601B1
EP2292601B1 EP10251547.5A EP10251547A EP2292601B1 EP 2292601 B1 EP2292601 B1 EP 2292601B1 EP 10251547 A EP10251547 A EP 10251547A EP 2292601 B1 EP2292601 B1 EP 2292601B1
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EP2292601A1 (de
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Young-Kook Kim
Seok-Hwan Hwang
Yoon-Hyun Kwak
Hye-Jin Jung
Hyung-Jun Song
Jin-O Lim
Jong-Hyuk Lee
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Samsung Display Co Ltd
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    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
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    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
    • C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
    • C07D403/10—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a carbon chain containing aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D209/56—Ring systems containing three or more rings
    • C07D209/58—[b]- or [c]-condensed
    • C07D209/60—Naphtho [b] pyrroles; Hydrogenated naphtho [b] pyrroles
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
    • C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
    • C07D403/04—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings directly linked by a ring-member-to-ring-member bond
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
    • C07D413/10—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
    • C07D417/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings
    • C07D417/04—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings directly linked by a ring-member-to-ring-member bond
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
    • C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
    • C07D471/04—Ortho-condensed systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
    • C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
    • C07D487/04—Ortho-condensed systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D519/00—Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups C07D453/00 or C07D455/00

Definitions

  • the present invention relates to heterocyclic compounds and organic light-emitting devices including the heterocyclic compounds.
  • Organic light-emitting devices are self-emission type display devices, and have wide viewing angles, high contrast ratios, and short response times. Due to these characteristics, organic light-emitting devices are drawing much attention.
  • Light-emitting devices can be roughly classified into inorganic light-emitting devices which include emission layers containing inorganic compounds, and organic light-emitting devices which include emission layers containing organic compounds.
  • Organic light-emitting devices have higher luminance, lower driving voltages, and shorter response times than inorganic light-emitting devices.
  • organic light-emitting devices produce various colors. Thus, research has been conducted into organic light-emitting devices.
  • an organic light-emitting device has a stack structure including an anode, a cathode and an organic emission layer between the anode and cathode.
  • a hole injection layer and/or a hole transport layer may be further stacked between the anode and the organic emission layer, and/or an electron transport layer may be further stacked between the organic emission layer and the cathode.
  • an organic light-emitting device may have an anode/hole transport layer/organic emission layer/cathode stack structure or an anode/hole transport layer/organic emission layer/electron transport layer/cathode stack structure.
  • a phenanthrene derivative As a material for forming the organic emission layer, a phenanthrene derivative can be used.
  • organic light-emitting devices including known light-emitting materials do not have satisfactory life span, efficiency, or power consumption characteristics, thus leaving much room for improvement.
  • US 2008/012445 discloses carbazole-based compounds for use in organic light emitting devices. Mohanakrishnan et al., Tetrahedron Letters, 49 (2008), 5850-5854 discloses a one pot synthesis of annulated carbazole analogs.
  • WO2010/114264 discloses phenanthropyrroles for use in organic electroluminescent devices.
  • JP2010-073987 discloses carbazole derivatives for use in an organic thin-film solar cell.
  • a heterocyclic compound according to Claim 1 an organic light-emitting device according to Claim 9, and a flat panel display according to Claim 15.
  • Various preferred features of the invention are set out in the dependent claims.
  • a heterocyclic compound having excellent electrical characteristics, charge transporting capabilities and light-emission capabilities.
  • thee is provided an organic light-emitting device including the heterocyclic compound.
  • a flat panel display device including the organic light-emitting device.
  • an organic light-emitting device includes at least one layer containing the heterocyclic compound, where the at least one layer is formed using a wet process.
  • a heterocyclic compound includes compounds represented by Formula 1 below:
  • X 1 is selected from substituted and unsubstituted C 1 -C 50 alkyl groups, substituted and unsubstituted C 3 -C 50 cycloalkyl groups, substituted and unsubstituted C 5 -C 60 aryl groups, amino groups substituted with at least one substituted or unsubstituted C 5 -C 60 aryl group, substituted and unsubstituted C 3 -C 60 heteroaryl groups, and substituted and unsubstituted C 6 -C 60 condensed polycyclic groups.
  • Each of R 1 -R 10 is independently selected from hydrogen atoms, heavy hydrogen atoms, substituted and unsubstituted C 1 -C 50 alkyl groups, substituted and unsubstituted C 3 -C 50 cycloalkyl groups, substituted and unsubstituted C 1 -C 50 alkoxy groups, substituted and unsubstituted C 5 -C 50 aryloxy groups, substituted and unsubstituted C 5 -C 50 arylthio groups, substituted and unsubstituted C 5 -C 60 aryl groups, amino groups substituted with at least one substituted or unsubstituted C 5 -C 60 aryl group, substituted and unsubstituted C 3 -C 60 heteroaryl groups, substituted and unsubstituted C 6 -C 60 condensed polycyclic groups, halogen atoms, cyano groups, nitro groups, hydroxyl groups, and carboxyl groups, wherein X 1 ,
  • a heterocyclic compound includes a compound represented by Formula 2 below:
  • X 2 is selected from substituted and unsubstituted C 1 -C 50 alkyl groups, substituted and unsubstituted C 3 -C 50 cycloalkyl groups, substituted and unsubstituted C 5 -C 60 aryl groups, amino groups substituted with at least one substituted or unsubstituted C 5 -C 60 aryl group, substituted and unsubstituted C 3 -C 60 heteroaryl groups, and substituted and unsubstituted C 6 -C 60 condensed polycyclic groups.
  • Each of R 11 -R 20 is independently selected from hydrogen atoms, heavy hydrogen atoms, substituted and unsubstituted C 1 -C 50 alkyl groups, substituted and unsubstituted C 3 -C 50 cycloalkyl groups, substituted and unsubstituted C 1 -C 50 alkoxy groups, substituted and unsubstituted C 5 -C 50 aryloxy groups, substituted and unsubstituted C 5 -C 50 arylthio groups, substituted and unsubstituted C 5 -C 60 aryl groups, amino groups substituted with at least one substituted or unsubstituted C 5 -C 60 aryl group, substituted and unsubstituted C 3 -C 60 heteroaryl groups, substituted and unsubstituted C 6 -C 60 condensed polycyclic groups, halogen atoms, cyano groups, nitro groups, hydroxyl groups, and carboxyl groups, wherein X 1 ,
  • R 6 or R 16 may be independently selected from substituted and unsubstituted monocyclic to tetracyclic aryl groups, substituted and unsubstituted C 3 -C 60 heteroaryl groups, and substituted and unsubstituted C 5 -C 50 arylamine groups.
  • Nonlimiting examples of suitable unsubstituted monocyclic to tetracyclic aryl groups, unsubstituted C 3 -C 60 heteroaryl groups, and unsubstituted C 5 -C 50 arylamine groups include unsubstituted phenyl groups, unsubstituted naphthyl groups, unsubstituted biphenyl groups, unsubstituted terphenyl groups, unsubstituted anthracenyl groups, unsubstituted fluorenyl groups, unsubstituted carbazolyl groups, and unsubstituted pyrenyl groups.
  • Nonlimiting examples of suitable substituted monocyclic to tetracyclic aryl groups include phenyl groups, naphthyl groups, biphenyl groups, terphenyl groups, anthracenyl groups, fluorenyl groups, carbazolyl groups, and pyrenyl groups, that are substituted with at least one group selected from C 1 -C 5 alkyl groups, C 1 -C 5 alkoxy groups, cyano groups, amine groups, phenoxy groups, phenyl groups, and halogen groups.
  • Nonlimiting examples of suitable substituted C 3 -C 60 heteroaryl groups include those substituted with at least one group selected from C 1 -C 5 alkyl groups, C 1 -C 5 alkoxy groups, cyano groups, amine groups, phenoxy groups, phenyl groups, halogen groups, and C 3 -C 60 heteroaryl groups.
  • suitable substituted C 5 -C 50 arylamine groups include those substituted with at least one group selected from C 1 -C 5 alkyl groups, C 1 -C 4 alkoxy groups, cyano groups, amine groups, phenoxy groups, phenyl groups, and halogen groups.
  • Each of X 1 and X 2 may be independently selected from substituted and unsubstituted monocyclic to tetracyclic aryl groups, and substituted and unsubstituted C 3 -C 60 heteroaryl groups.
  • suitable unsubstituted monocyclic to tetracyclic aryl groups and substituted C 3 -C 60 heteroaryl groups include unsubstituted phenyl groups, unsubstituted naphthyl groups, unsubstituted biphenyl groups, unsubstituted terphenyl groups, unsubstituted anthracenyl groups, unsubstituted fluorenyl groups, unsubstituted carbazolyl groups, and unsubstituted pyrenyl groups.
  • Nonlimiting examples of suitable substituted monocyclic to tetracyclic aryl groups include phenyl groups, naphthyl groups, biphenyl groups, terphenyl groups, anthracenyl groups, fluorenyl groups, carbazolyl groups, and pyrenyl groups, that are substituted with at least one group selected from C 1 -C 5 alkyl groups, C 1 -C 5 alkoxy groups, cyano groups, amine groups, phenoxy groups, phenyl groups, and halogen groups.
  • Nonlimiting examples of suitable substituted C 3 -C 60 heteroaryl group include those substituted with at least one group selected from C 1 -C 5 alkyl groups, C 1 -C 5 alkoxy groups, cyano groups, amine groups, phenoxy groups, phenyl groups, halogen groups, and C 5 -C 10 heteroaryl groups.
  • Each of R 1 , R 2 , R 11 and R 12 may be independently selected from methyl groups and phenyl groups, for example each of R 1 , R 2 , R 11 and R 12 is a methyl group or each of R 1 , R 2 , R 11 and R 12 is a phenyl group.
  • each of R 3 -R 10 are hydrogen atoms
  • each of R 13 -R 20 are hydrogen atoms
  • each of R 3 -R 5 and R 7 -R 10 are hydrogen atoms or each of R 13 -R 15 and R 17 -R 20 are hydrogen atoms.
  • the heterocyclic compound of Formula 1 or Formula 2 may include one of Compounds 10, 17, 27, 33 and 42 below:
  • an organic light-emitting device including a first electrode, a second electrode, and one or more organic layers between the first and second electrodes.
  • the one or more organic layers may include at least one organic layer including the heterocyclic compound described above.
  • the at least one organic layer including the heterocyclic compound may include an electron injection layer or an electron transport layer.
  • the at least one organic layer including the heterocyclic compound may include a single film having both an electron injection function and an electron transport function.
  • the at least one organic layer including the heterocyclic compound may include an emission layer.
  • the at least one organic layer including the heterocyclic compound may include an emission layer, and the heterocyclic compound may be used as a fluorescent or phosphorescent host.
  • the at least one organic layer including the heterocyclic compound may include an emission layer, and the heterocyclic compound may be used as a fluorescent dopant.
  • the at least one organic layer including the heterocyclic compound may include an emission layer, and an electron injection layer or an electron transport layer, and the emission layer may include an anthracene compound.
  • the at least one organic layer including the heterocyclic compound may include an emission layer, and an electron injection layer or an electron transport layer, and the emission layer may include an arylamine compound.
  • the at least one organic layer including the heterocyclic compound may include an emission layer, and an electron injection layer or an electron transport layer, and the emission layer may include a styryl compound.
  • the at least one organic layer including the heterocyclic compound may include an emission layer, and an electron injection layer or an electron transport layer, and the emission layer may include a red emission layer, a green emission layer, a blue emission layer, or a white emission layer, each of which may include a phosphorescent compound.
  • the one or more organic layers include at least one layer selected from a hole injection layer, a hole transport layer, an electron blocking layer, an emission layer, a hole blocking layer, an electron transport layer, and an electron injection layer.
  • the organic light-emitting device may have a first electrode/hole injection layer/emission layer/second electrode structure, a first electrode/hole injection layer/hole transport layer/emission layer/electron transport layer/second electrode structure, or a first electrode/hole injection layer/hole transport layer/emission layer/electron transport layer/electron injection layer/second electrode layer structure.
  • a flat panel display device includes the organic light-emitting device described above, where the first electrode of the organic light-emitting device is electrically connected to a source electrode or a drain electrode of a thin-film transistor.
  • the organic light-emitting device includes organic light-emitting devices where the at least one organic layer including the heterocyclic compound is formed using a wet process.
  • FIG. 1 illustrates the structure of an organic light-emitting device according to an embodiment of the present invention.
  • a heterocyclic compound according to an embodiment of the present invention is represented by Formula 1 below:
  • X 1 may be selected from substituted and unsubstituted C 1 -C 50 alkyl groups, substituted and unsubstituted C 3 -C 50 cycloalkyl groups, substituted and unsubstituted C 5 -C 60 aryl groups, amino groups substituted with at least one substituted or unsubstituted C 5 -C 60 aryl group, substituted and unsubstituted C 3 -C 60 heteroaryl groups, and substituted and unsubstituted C 6 -C 60 condensed polycyclic groups.
  • Each of R 1 -R 10 may be independently selected from hydrogen atoms, heavy hydrogen atoms, substituted and unsubstituted C 1 -C 50 alkyl groups, substituted and unsubstituted C 3 -C 50 cycloalkyl groups, substituted and unsubstituted C 1 -C 50 alkoxy groups, substituted and unsubstituted C 5 -C 50 aryloxy groups, substituted and unsubstituted C 5 -C 50 arylthio groups, substituted and unsubstituted C 5 -C 60 aryl groups, amino groups substituted with at least one substituted or unsubstituted C 5 -C 60 aryl group, substituted and unsubstituted C 3 -C 60 heteroaryl groups, substituted and unsubstituted C 6 -C 60 condensed polycyclic groups, halogen atoms, cyano groups, nitro groups, hydroxyl groups, and carboxyl groups, wherein X 1
  • a heterocyclic compound according to another embodiment of the present invention is represented by Formula 2 below:
  • X 2 is selected from substituted and unsubstituted C 1 -C 50 alkyl groups, substituted and unsubstituted C 3 -C 50 cycloalkyl groups, substituted and unsubstituted C 5 -C 60 aryl groups, amino groups substituted with at least one substituted or unsubstituted C 5 -C 60 aryl group, substituted and unsubstituted C 3 -C 60 heteroaryl groups, and substituted and unsubstituted C 6 -C 60 condensed polycyclic groups.
  • Each of R 11 -R 20 is independently selected from hydrogen atoms, heavy hydrogen atoms, substituted and unsubstituted C 1 -C 50 alkyl groups, substituted and unsubstituted C 3 -C 50 cycloalkyl groups, substituted and unsubstituted C 1 -C 50 alkoxy groups, substituted and unsubstituted C 5 -C 50 aryloxy groups, substituted and unsubstituted C 5 -C 50 arylthio groups, substituted and unsubstituted C 5 -C 60 aryl groups, amino groups substituted with at least one substituted or unsubstituted C 5 -C 60 aryl group, substituted and unsubstituted C 3 -C 60 heteroaryl groups, substituted and unsubstituted C 6 -C 60 condensed polycyclic groups, halogen atoms, cyano groups, nitro groups, hydroxyl groups, and carboxyl groups, wherein X 1 ,
  • Nonlimiting examples of materials suitable for forming an emission layer or electron transport layer of an organic light-emitting device include Alq 3 , 2,2',2"-(1,3,5-phenylene)tris-(1-phenyl)-1H-benzimidazole (TPBI), 2-Biphenyl-4-yl-5-(4-tert-butyl-phenyl)-[1,3,4]oxadiazole (PBD), perfluorinated compound (PF-6P), and 2,5-bis(6'-(2',2"-bipyridyl))-1,1-dimethyl-3,4-diphenylsilylol (PyPySPyPy).
  • TPBI 2,2',2"-(1,3,5-phenylene)tris-(1-phenyl)-1H-benzimidazole
  • PBD 2-Biphenyl-4-yl-5-(4-tert-butyl-phenyl)-[1,3,4]oxadia
  • An organic light-emitting device manufactured using the heterocyclic compound of Formula 1 or Formula 2 (in which a phenanthrene group and an iridole group are fused with each other) has good durability when stored or operated.
  • a substituent such as a fluorene group or a naphthyl group
  • molecular films may be maintained in good condition, thereby improving the characteristics of the organic light-emitting device.
  • R 6 or R 16 may be independently selected from substituted and unsubstituted monocyclic to tetracyclic aryl groups, substituted and unsubstituted C 3 -C 60 heteroaryl groups, and substituted and unsubstituted C 5 -C 50 arylamine groups.
  • Nonlimiting examples of suitable unsubstituted monocyclic to tetracyclic aryl groups, unsubstituted C 3 -C 60 heteroaryl groups, and unsubstituted C 5 -C 50 arylamine groups include unsubstituted phenyl groups, unsubstituted naphthyl groups, unsubstituted biphenyl groups, unsubstituted terphenyl groups, unsubstituted anthracenyl groups, unsubstituted fluorenyl groups, unsubstituted carbazolyl groups, and unsubstituted pyrenyl groups.
  • Nonlimiting examples of suitable substituted monocyclic to tetracyclic aryl groups include phenyl groups, naphthyl groups, biphenyl groups, terphenyl groups, anthracenyl groups, fluorenyl groups, carbazolyl groups, and pyrenyl groups, that are substituted with at least one group selected from C 1 -C 5 alkyl groups, C 1 -C 5 alkoxy groups, cyano groups, amine groups, phenoxy groups, phenyl groups, and halogen groups.
  • Nonlimiting examples of suitable substituted C 3 -C 60 heteroaryl groups include those substituted with at least one group selected from C 1 -C 5 alkyl groups, C 1 -C 5 alkoxy groups, cyano groups, amine groups, phenoxy groups, phenyl groups, halogen groups, and C 5 -C 10 heteroaryl groups.
  • suitable substituted C 5 -C 50 arylamine groups include those substituted with at least one group selected from C 1 -C 5 alkyl groups, C 1 -C 4 alkoxy groups, cyano groups, amine groups, phenoxy groups, phenyl groups, and halogen groups.
  • each of X 1 and X 2 may be independently selected from substituted and unsubstituted monocyclic to tetracyclic aryl groups, and substituted and unsubstituted C 3 -C 60 heteroaryl groups.
  • Nonlimiting examples of suitable unsubstituted monocyclic to tetracyclic aryl groups and unsubstituted C 3 -C 60 heteroaryl groups include unsubstituted phenyl groups, unsubstituted naphthyl groups, unsubstituted biphenyl groups, unsubstituted terphenyl groups, unsubstituted anthracenyl groups, unsubstituted fluorenyl groups, unsubstituted carbazolyl groups, and unsubstituted pyrenyl groups.
  • Nonlimiting examples of substituted monocyclic to tetracyclic aryl groups include phenyl groups, naphthyl groups, biphenyl groups, terphenyl groups, anthracenyl groups, fluorenyl groups, carbazolyl groups, and pyrenyl groups, that are substituted with at least one group selected from C 1 -C 5 alkyl groups, C 1 -C 5 alkoxy groups, cyano groups, amine groups, phenoxy groups, phenyl groups, and halogen groups.
  • Nonlimiting examples of substituted C 3 -C 60 heteroaryl groups include those substituted with at least one group selected from C 1 -C 5 alkyl groups, C 1 -C 5 alkoxy groups, cyano groups, amine groups, phenoxy groups, phenyl groups, halogen groups, and C 5 -C 10 heteroaryl groups.
  • R 1 , R 2 , R 11 and R 12 may be each independently a methyl group or a phenyl group.
  • the unsubstituted C 1 -C 50 alkyl group may be linear or branched.
  • Nonlimiting examples of the unsubstituted alkyl group include methyl groups, ethyl groups, propyl groups, isobutyl groups, sec-butyl groups, pentyl groups, iso-amyl groups, hexyl groups, heptyl groups, octyl groups, nonanyl groups, and dodecyl groups.
  • At least one hydrogen atom of the alkyl group may be substituted with a substituent selected from heavy hydrogen atoms, halogen atoms, hydroxyl groups, nitro groups, cyano groups, amino groups, amidino groups, hydrazines, hydrazones, carboxyl groups and salts thereof, sulfonic acid groups and salts thereof, phosphoric acid groups and salts thereof, C 1 -C 10 alkyl groups, C 1 -C 10 alkoxy groups, C 2 -C 10 alkenyl groups, C 2 -C 10 alkynyl groups, C 6 -C 16 aryl groups, and C 4 -C 16 heteroaryl groups.
  • a substituent selected from heavy hydrogen atoms, halogen atoms, hydroxyl groups, nitro groups, cyano groups, amino groups, amidino groups, hydrazines, hydrazones, carboxyl groups and salts thereof, sulfonic acid groups and salts thereof, phosphoric acid groups and salt
  • the unsubstituted C 3 -C 50 cycloalkyl group refers to a C 3 -C 50 alkyl group having a cyclic form.
  • one or more hydrogen atoms may be substituted with a substituent such as those described above with respect to the unsubstituted C 1 -C 50 alkyl group.
  • the unsubstituted C 1 -C 50 alkoxy group is a group having a -OA structure where A is an unsubstituted C 1 -C 50 alkyl group as described above.
  • A is an unsubstituted C 1 -C 50 alkyl group as described above.
  • Nonlimiting examples of the unsubstituted C 1 -C 50 alkoxy group include methoxy groups, ethoxy groups, propoxy groups, isopropyloxy groups, butoxy groups, and pentoxy groups.
  • At least one hydrogen atom of the alkoxy group may be substituted with a substituent such as those described above with respect to the alkyl group.
  • the unsubstituted C 5 -C 60 aryl group refers to a carbocyclic aromatic system containing at least one ring. At least two rings may be fused to each other or linked to each other by a single bond.
  • aryl refers to an aromatic system, such as a phenyl, naphthyl, or anthracenyl system. At least one hydrogen atom in the aryl group may be substituted with a substituent such as those described above with respect to the unsubstituted C 1 -C 50 alkyl group.
  • Nonlimiting examples of the substituted or unsubstituted C 5 -C 60 aryl group include phenyl groups, C 1 -C 10 alkylphenyl groups (for example, ethylphenyl groups), halophenyl groups (for example, o-, m-, and p-fluorophenyl groups, dichlorophenyl groups), cyanophenyl groups, dicyanophenyl groups, trifluoromethoxyphenyl groups, biphenyl groups, halobiphenyl groups, cyanobiphenyl groups, C 1 -C 10 alkyl biphenyl groups, C 1 -C 10 alkoxybiphenyl groups, o-, m-, and p-tolyl groups, o-, m-, and p-cumenyl groups, mesityl groups, phenoxyphenyl groups, ( ⁇ , ⁇ -dimethylbenzene)phenyl groups, (N,N'-dimethyl)a
  • the unsubstituted C 3 -C 60 heteroaryl group includes one, two or three hetero atoms selected from N, O, P and S. If the unsubstituted C 3 -C 60 heteroaryl group has at least two rings, the rings may be fused to each other or linked to each other by a single bond.
  • Nonlimiting examples of the unsubstituted C 3 -C 60 heteroaryl group include pyrazolyl groups, imidazolyl groups, oxazolyl groups, thiazolyl groups, triazolyl groups, tetrazolyl groups, oxadiazolyl groups, pyridinyl groups, pyridazinyl groups, pyrimidinyl groups, triazinyl groups, carbazolyl groups, indolyl groups, quinolinyl groups, and isoquinolinyl groups.
  • at least one hydrogen atom in the heteroaryl group may be substituted with a substituent such as those described above with respect to the unsubstituted C 1 -C 50 alkyl group.
  • the unsubstituted C 5 -C 50 aryloxy group is represented by -OA 1 where A 1 represents a substituent such as those described above with respect to the C 5 -C 60 aryl group (except that the number of carbon atoms may be different).
  • a 1 represents a substituent such as those described above with respect to the C 5 -C 60 aryl group (except that the number of carbon atoms may be different).
  • Nonlimiting examples of the aryloxy group include phenoxy groups.
  • At least one hydrogen atom in the aryl group may be substituted with a substituent such as those described above with respect to the unsubstituted C 1 -C 50 alkyl group.
  • the unsubstituted C 5 -C 50 arylthiol group is represented by -SA 1 where A 1 represents a substituent such as those described above with respect to the C 5 -C 60 aryl group (except that the number of carbon atoms may be different).
  • a 1 represents a substituent such as those described above with respect to the C 5 -C 60 aryl group (except that the number of carbon atoms may be different).
  • Nonlimiting examples of the arylthiol group include benzenethiol groups, naphthylthiol groups, and fluorenylthiol groups.
  • At least one hydrogen atom in the arylthiol group may be substituted with a substituent such as those described above with respect to the unsubstituted C 1 -C 50 alkyl group.
  • the unsubstituted C 6 -C 60 condensed polycyclic group refers to a substituent including at least two rings wherein at least one aromatic ring and/or at least one non-aromatic ring are fused to each other.
  • the unsubstituted C 6 -C 60 condensed polycyclic group may include one or more of the substituents described above with respect to the aryl group or heteroaryl group.
  • the C 5 -C 50 arylamine group is an alternative expression of an amino group substituted with a C 5 -C 50 aryl group, and if the C 5 -C 50 arylamine group is substituted, the substitution occurs at an aryl group therein.
  • Nonlimiting examples of the heterocyclic compound of Formula 1 or Formula 2 include Compounds 1 through 52 represented below. However, the heterocyclic compound of Formula 1 or Formula 2 is not limited thereto.
  • An organic light-emitting device includes a first electrode, a second electrode, and one or more organic layers between the first electrode and the second electrode, wherein the one or more organic layers include the heterocyclic compound of Formula 1 or Formula 2 described above.
  • the at least one organic layer including the heterocyclic compound of Formula 1 or Formula 2 may be an electron injection layer, an electron transport layer, or a single layer having both electron injection and electron transport capabilities.
  • the at least one organic layer including the heterocyclic compound of Formula 1 or Formula 2 may be an emission layer.
  • the heterocyclic compound of Formula 1 or Formula 2 may be used as a fluorescent host, a phosphorescent host, or a fluorescent dopant.
  • the emission layer when the emission layer, the electron injection layer or the electron transport layer includes the heterocyclic compound of Formula 1 or Formula 2, the emission layer may include an anthracene compound, an arylamine compound or a styryl compound.
  • the anthracene compound, the arylamine compound or the styryl compound may be unsubstituted or substituted with a substituent such as those described above with respect to the unsubstituted C 1 -C 50 alkyl group.
  • a red emission layer, a green emission layer, a blue emission layer, or a white emission layer may include a fluorescent compound.
  • the first electrode may be an anode, and the second electrode may be a cathode, but the reverse is also possible.
  • the one or more organic layers may further include at least one layer selected from a hole injection layer, a hole transport layer, an electron blocking layer, an emission layer, a hole blocking layer, an electron transport layer and an electron injection layer. If desired, the respective layers described above may have a double-layer structure.
  • the organic light-emitting device may have a first electrode/hole injection layer/emission layer/second electrode structure, a first electrode/hole injection layer/hole transport layer/emission layer/electron transport layer/second electrode structure, or a first electrode/hole injection layer/hole transport layer/emission layer/electron transport layer/electron injection layer/second electrode structure.
  • the organic light-emitting device may have a first electrode/single layer having both hole injection and hole transport capabilities/emission layer/electron transport layer/second electrode structure, or a first electrode/single layer having both hole injection and hole transport capabilities/emission layer/electron transport layer/electron injection layer/second electrode structure.
  • the organic light emitting device may be a top-emission type organic light-emitting device or a bottom-emission type organic light-emitting device.
  • FIG. 1 illustrates the structure of an organic light-emitting device according to embodiments of the present invention.
  • the organic light-emitting device includes a substrate, a first electrode (anode), a hole injection layer (HIL), a hole transport layer (HTL), an emission layer (EML), an electron transport layer (ETL), an electron injection layer (EIL), and a second electrode (cathode).
  • HIL hole injection layer
  • HTL hole transport layer
  • EML emission layer
  • ETL electron transport layer
  • EIL electron injection layer
  • cathode cathode
  • a first electrode material having a high work function may be deposited or sputtered on a substrate to form a first electrode.
  • the first electrode may be an anode or a cathode.
  • the substrate may be any substrate commonly used in organic light-emitting devices, and may be, for example, a glass substrate or a transparent plastic substrate having good mechanical strength, thermal stability, transparency, surface planarity, handling convenience, and water resistance.
  • the first electrode material may include at least one material selected from indium tin oxide (ITO), indium zinc oxide (IZO), tin oxide (SnO 2 ), zinc oxide (ZnO), aluminum (Al), silver (Ag), and magnesium (Mg), which have good conductivity, and may form a transparent or reflective electrode.
  • the HIL may be formed on the first electrode by various methods, for example, by vacuum deposition, spin coating, casting, Langmuir-Blodgett (LB) deposition, or the like.
  • the deposition conditions may vary according to the compound used to form the HIL, and the desired structural and thermal characteristics of the HIL to be formed.
  • the deposition conditions may include a deposition temperature of about 100 to about 500°C, a vacuum pressure of about 10 -8 torr (1.3 x 10 -6 Pa) to about 10 -3 torr (0.13 Pa), and a deposition rate of about 0.01 to about 100 ⁇ /sec (10 -6 - 0.01 ⁇ m/sec).
  • the coating conditions may vary according to the compound used to form the HIL, and the structural and thermal properties of the HIL to be formed.
  • the coating conditions may include a coating speed of about 2000 rpm to about 5000 rpm, and a thermal treatment temperature of about 80°C to about 200°C, wherein the thermal treatment removes the solvent after the coating.
  • HIL material may include any known HIL material.
  • HIL materials include phthalocyanine compounds such as copper phthalocyanine, 4,4',4"-tris(3-methylphenylphenylamino)triphenylamine (m-MTDATA), N,N'-di(1-naphthyl)-N,N'-diphenylbenzidine) (NPB), TDATA, 2-TNATA, polyaniline/dodecylbenzenesulfonic acid (Pani/DBSA), poly(3,4-ethylenedioxythiophene)/poly(4-styrenesulfonate) (PEDOT/PSS), polyaniline/camphor sulfonicacid (Pani/CSA), and (polyaniline)/poly(4-styrenesulfonate) (PANI/PSS).
  • phthalocyanine compounds such as copper phthalocyanine, 4,4',4"-tris(3-methylphenylphenylamino
  • the HIL may have a thickness of about 100 ⁇ to about 10000 ⁇ (0.01 - 1 ⁇ m). In some embodiments, for example, the HIL has a thickness of about 100 ⁇ to about 1000 ⁇ (0.01 - 0.1 ⁇ m). When the HIL has a thickness within these ranges, the HIL has good hole injection characteristics without increasing driving voltage.
  • the HTL may be formed on the HIL by various methods, for example by vacuum deposition, spin coating, casting, LB deposition, or the like.
  • the deposition or coating conditions may be similar to those used to form the HIL, although the deposition or coating conditions may vary according to the material used to form the HTL.
  • the HTL material may include a known HTL material.
  • the HTL material may include carbazole derivatives such as N-phenylcarbazole or polyvinylcarbazole, and amine derivatives having an aromatic condensed ring, such as NPB, and N,N'-bis(3-methylphenyl)- N,N'-diphenyl-[1,1-biphenyl]-4,4'-diamine (TPD).
  • NPB N,N'-bis(3-methylphenyl)- N,N'-diphenyl-[1,1-biphenyl]-4,4'-diamine
  • TCTA not only transport holes but also inhibits excitons from being diffused from the EML.
  • the HTL may have a thickness of about 50 ⁇ to about 1000 ⁇ (0.005 - 0.1 ⁇ m). In some embodiments, for example, the HTL has a thickness of about 100 ⁇ to about 600 ⁇ (0.01 - 0.06 ⁇ m). When the HTL has a thickness within these ranges, the HTL has good hole transport characteristics without substantially increasing driving voltage.
  • the EML may be formed on the HTL by various methods, for example, by vacuum deposition, spin coating, casting, LB deposition, or the like.
  • the deposition or coating conditions may be similar to those used to form the HIL, although the deposition and coating conditions may vary according to the material used to form the EML.
  • the EML may include the heterocyclic compound of Formula 1 or Formula 2 described above.
  • the heterocyclic compound of Formula 1 or Formula 2 may be used as a host or a dopant.
  • the EML may include a variety of known light-emitting materials, in addition to the heterocyclic compound of Formula 1 or Formula 2.
  • the EML may also be formed using known hosts and dopants.
  • the dopant used to form the EML may include either a fluorescent dopant or a phosphorescent dopant, each of which may be a known material.
  • Nonlimiting examples of the host include Alq 3 , CPB (4,4'-N,N'-dicarbazole-biphenyl), 9,10-di(naphthalene-2-yl)anthracene (ADN), and distyrylarylene (DSA).
  • red dopants include platinum(II) octaethylporphyrin (PtOEP), Ir(piq) 3 , Btp 2 Ir(acac), and 4-(dicyanomethylene)-2-t-butyl-6(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTB).
  • PtOEP platinum(II) octaethylporphyrin
  • Ir(piq) 3 Ir(piq) 3
  • Btp 2 Ir(acac) Btp 2 Ir(acac
  • DCJTB 4-(dicyanomethylene)-2-t-butyl-6(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran
  • Nonlimiting examples of green dopants include Ir(ppy) 3 (where "ppy” denotes phenylpyridine), Ir(ppy) 2 (acac), Ir(mpyp) 3 , and C545T.
  • Nonlimiting examples of blue dopants include F 2 Irpic, (F 2 ppy) 2 Ir(tmd), Ir(dfppz) 3 , ter-fluorene, 4,4'-bis(4-diphenylaminostyryl)biphenyl (DPAVBi), and 2,5,8,11-tetra-t-butyl perylene (TBP).
  • the amount of the dopant may be in the range of about 0.1 to about 20 parts by weight based on 100 parts by weight of the EML material (total weight of the host and dopant). In some embodiments, for example, the amount of the dopant is about 0.5 to about 12 parts by weight based on 100 parts by weight of the EML material (total weight of the host and dopant). When the amount of the dopant is within these ranges, concentration quenching is substantially prevented.
  • the EML may have a thickness of about 100 ⁇ to about 1000 ⁇ (0.01 - 0.1 ⁇ m). In some embodiment, for example, the EML has a thickness of about 200 ⁇ to about 600 ⁇ (0.02 - 0.06 ⁇ m). When the EML has a thickness within these ranges, the EML has good light-emitting characteristics without substantially increasing driving voltage.
  • a hole blocking layer (HBL, not shown in FIG. 1 ) may be formed on the EML in order to prevent diffusion of triplet excitons or holes into the ETL.
  • HBL may comprise any material commonly used to form an HBL, without limitation.
  • HBL materials include oxadiazole derivatives, triazole derivatives, phenanthroline derivatives, Balq, and bathocuproine (BCP).
  • the HBL may have a thickness of about 50 ⁇ to about 1000 ⁇ (0.005 - 0.1 ⁇ m). In some embodiments, for example, the HBL has a thickness of about 100 ⁇ to about 300 ⁇ (0.01 - 0.03 ⁇ m). When the thickness of the HBL is within these ranges, the HBL has good hole blocking capability without substantially increasing driving voltage.
  • the ETL is formed on the EML (or HBL) by various methods, for example, by vacuum deposition, spin coating, casting, or the like.
  • the deposition or coating conditions may be similar to those used to form the HIL, although the deposition and coating conditions may vary according to the material used to form the ETL.
  • the ETL material may include the heterocyclic compound of Formula 1 or Formula 2 described above.
  • the ETL may comprise any material known in the art.
  • Nonlimiting examples of ETL materials include quinoline derivatives, such as tris(8-quinolinolate)aluminum (Alq 3 ), TAZ, or Balq.
  • the ETL may have a thickness of about 100 ⁇ to about 1000 ⁇ (0.01 - 0.1 ⁇ m). In some embodiment, for example, the ETL has a thickness of about 100 ⁇ to about 500 ⁇ (0.01 - 0.05 ⁇ m). When the thickness of the ETL is within these ranges, the ETL has good electron transporting ability without substantially increasing driving voltage.
  • the EIL which facilitates injection of electrons from the cathode, may be formed on the ETL.
  • the EIL material may include the heterocyclic compound of Formula 1 or Formula 2 described above.
  • known EIL materials such as LiF, NaCl, CsF, Li 2 O, or BaO, may be used to form the EIL.
  • the deposition or coating conditions may be similar to those used to form the HIL, although the deposition and coating conditions may vary according to the material used to form the EIL.
  • the EIL may have a thickness of about 1 ⁇ to about 100 ⁇ (0.0001 - 0.01 ⁇ m). In some embodiments, for example, the EIL has a thickness of about 5 ⁇ to about 90 ⁇ (0.0005 - 0.009 ⁇ m). When the EIL has a thickness within these ranges, the EIL has good electron injection characteristics without substantially increasing driving voltage.
  • the second electrode may be formed on the EIL by, for example, vacuum deposition, sputtering, or the like.
  • the second electrode may be a cathode or an anode.
  • a material for forming the second electrode may be a metal, an alloy, or an electrically conductive compound, or a combination thereof, each of which has a low work function.
  • Nonlimiting examples of such materials include lithium (Li), magnesium (Mg), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), magnesium-indium (Mg-In), and magnesium-silver (Mg-Ag).
  • a transparent cathode comprising a transparent material such as ITO or IZO may be used as the second electrode.
  • the organic light-emitting device may be used in various types of flat panel display devices, such as passive matrix organic light-emitting display devices or active matrix organic light-emitting display devices.
  • the organic light-emitting device when used in an active matrix organic light-emitting display device including a thin-film transistor, the first electrode on the substrate functions as a pixel electrode, and is electrically connected to a source electrode or a drain electrode of the thin-film transistor.
  • the organic light-emitting device may also be used in flat panel display devices having double-sided screens.
  • At least one layer of the organic light-emitting device comprises the heterocyclic compound of Formula 1 or Formula 2 and is applied by a deposition method or a wet method of coating a solution of the heterocyclic compound of Formula 1 or Formula 2.
  • An anode was prepared by cutting a Corning 15 ⁇ cm 2 [(12001 ⁇ (0.12 ⁇ m)] ITO glass substrate to a size of 50 mm ⁇ 50 mm ⁇ 0.7 mm, ultrasonically cleaning the glass substrate using isopropyl alcohol and pure water for 5 minutes each, and then irradiating with UV light for 30 minutes and exposing to ozone to clean. Then, the anode was mounted in a vacuum deposition apparatus.
  • 2-TNATA as an HIL material was vacuum-deposited on the glass substrate to form an HIL having a thickness of 600 ⁇ (0.06 ⁇ m).
  • NPB 4,4'-bis[N-(1-naphthyl)-N-phenylamino]biphenyl
  • a green fluorescent host Alq 3 and a green fluorescent dopant C545T were deposited simultaneously with a weight ratio of 98:2, on the HTL, to form an EML with a thickness of 300 ⁇ .
  • Compound 10 was deposited on the EML to form an ETL having a thickness of 300 ⁇ (0.03 ⁇ m). Then, LiF (a halogenated alkali metal) was deposited on the ETL to form an EIL having a thickness of 10 ⁇ (0.001 ⁇ m). Then, Al was deposited on the EIL to a thickness of 3000 ⁇ (0.3 ⁇ m) (cathode), thereby forming a LiF/Al electrode. As a result, the manufacture of an organic light-emitting device was completed.
  • LiF a halogenated alkali metal
  • the organic light-emitting device had a driving voltage of 5.83 V at a current density of 50 mA/cm 2 , a high emission brightness of 8,260 cd/m 2 , color coordinates of (0.311, 0.643), and an emission efficiency of 16.52 cd/A.
  • An organic light-emitting device was manufactured as in Example 1, except that Compound 17 was used instead of Compound 10 to form the ETL.
  • the organic light-emitting device had a driving voltage of 6.18 V at a current density of 50 mA/cm 2 , a high emission brightness of 8,540 cd/m 2 , color coordinates of (0.310, 0.644), and an emission efficiency of 17.08 cd/A.
  • An organic light-emitting device was manufactured as in Example 1, except that Compound 27 was used instead of Compound 10 to form the ETL.
  • the organic light-emitting device had a driving voltage of 5.59 V at a current density of 50 mA/cm 2 , a high emission brightness of 8,956 cd/m 2 , color coordinates of (0.309, 0.643), and an emission efficiency of 17.91 cd/A.
  • An organic light-emitting device was manufactured as in Example 1, except that Compound 33 was used instead of Compound 10 to form the ETL.
  • the organic light-emitting device had a driving voltage of 5.49 V at a current density of 50 mA/cm 2 , a high emission brightness of 8,987 cd/m 2 , color coordinates of (0.310, 0.644), and an emission efficiency of 17.97 cd/A.
  • An organic light-emitting device was manufactured as in Example 1, except that Compound 42 was used instead of Compound 10 to form the ETL.
  • the organic light-emitting device had a driving voltage of 5.91 V at a current density of 50 mA/cm 2 , a high emission brightness of 8,023 cd/m 2 , color coordinates of (0.311, 0.643), and an emission efficiency of 16.04 cd/A.
  • An organic light-emitting device was manufactured as in Example 1, except that Alq 3 was used instead of Compound 10 to form the ETL.
  • the organic light-emitting device had a driving voltage of 7.45 V at a current density of 50 mA/cm 2 , a high emission brightness of 6,102 cd/m 2 , color coordinates of (0.309, 0.642), and an emission efficiency of 12.2 cd/A.
  • the organic light-emitting devices manufactured using the heterocyclic compounds of Formula 1 or Formula 2 as an ETL material according to Examples 1 through 5 had a driving voltage that was lower by 1 V or greater than when Alq3 was used, and thus had higher efficiency and good I-V-L characteristics.
  • lifetime characteristics were markedly improved by around 100% or greater in the organic light-emitting devices according to Examples 1 through 5 compared with the organic light-emitting device according to Comparative Example 1. The results are shown in Table 1 below.
  • the heterocyclic compounds according to embodiments of the present invention have good electrical characteristics, high charge transporting capabilities, light-emission capabilities, high glass transition temperatures (T g ), and crystallization prevention characteristics.
  • the inventive heterocyclic compounds may be used as an electron transporting material or an emitting material for all-color fluorescent and phosphorescent devices, such as red, green, blue, and white fluorescent and phosphorescent devices.
  • an organic light-emitting device with high-efficiency, low driving voltage, high luminance and long lifespan may be manufactured using the heterocyclic compounds.

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Claims (15)

  1. Heterocyclische Verbindung, umfassend eine Verbindung, dargestellt durch nachstehende Formel 1 oder Formel 2:
    Figure imgb0048
    Figure imgb0049
     wobei:
    jedes von X1 und X2 unabhängig gewählt ist aus der Gruppe, bestehend aus substituierten und unsubstituierten C1-C50-Alkylgruppen, substituierten und unsubstituierten C3-C50-Cycloalkylgruppen, substituierten und unsubstituierten C5-C60-Arylgruppen, Aminogruppen, substituiert mit zumindest einer substituierten oder unsubstituierten C5-C60-Arylgruppe, substituierten und unsubstituierten C3-C60-Heteroarylgruppen und substituierten und unsubstituierten C6-C60 kondensierten polycyclischen Gruppen, und
    jedes von R1-R20 unabhängig gewählt ist aus der Gruppe, bestehend aus Wasserstoffatomen, schweren Wasserstoffatomen, substituierten und unsubstituierten C1-C50-Alkylgruppen, substituierten und unsubstituierten C3-C50-Cycloalkylgruppen, substituierten und unsubstituierten C1-C50-Alkoxygruppen, substituierten und unsubstituierten C5-C50-Aryloxygruppen, substituierten und unsubstituierten C5-C50-Arylthiogruppen, substituierten und unsubstituierten C5-C60-Arylgruppen, Aminogruppen, substituiert mit zumindest einer substituierten oder unsubstituierten C5-C60-Arylgruppe, substituierten und unsubstituierten C3-C60-Heteroarylgruppen, substituierten und unsubstituierten C6-C60 kondensierten polycyclischen Gruppen, Halogenatomen, Cyanogruppen, Nitrogruppen, Hydroxylgruppen und Carboxylgruppen,
    wobei X1, X2 und jedes von R1-R20 substituiert sein können mit einem Substituenten, gewählt aus schweren Wasserstoffatomen, Halogenatomen, Hydroxylgruppen, Nitrogruppen, Cyanogruppen, Aminogruppen, Amidinogruppen, Hydrazinen, Hydrazonen, Carboxylgruppen und Salzen davon, Sulfonsäuregruppen und Salzen davon, Phosphorsäuregruppen und Salzen davon, C1-C10-Alkylgruppen, C1-C10-Alkoxygruppen, C2-C10-Alkenylgruppen, C2-C10-Alkinylgruppen, C6-C16-Arylgruppen und C4-C16-Heteroarylgruppen.
  2. Heterocyclische Verbindung nach Anspruch 1, wobei R6 oder R16 unabhängig gewählt ist aus der Gruppe, bestehend aus:
    unsubstituierten monocyclischen bis tetracyclischen Arylgruppen, gewählt aus der Gruppe, bestehend aus unsubstituierten Phenylgruppen, unsubstituierten Naphthylgruppen, unsubstituierten Biphenylgruppen, unsubstituierten Terphenylgruppen, unsubstituierten Anthracenylgruppen, unsubstituierten Fluorenylgruppen, unsubstituierten Carbazolylgruppen und unsubstituierten Pyrenylgruppen, unsubstituierten C3-C60-Heteroarylgruppen und unsubstituierten C5-C50 Arylamingruppen;
    monocyclischen bis tetracyclischen Arylgruppen, gewählt aus der Gruppe, bestehend aus Phenylgruppen, Naphthylgruppen, Biphenylgruppen, Terphenylgruppen, Anthracenylgruppen, Fluorenylgruppen, Carbazolylgruppen und Pyrenylgruppen, substituiert mit zumindest einem Substituenten, gewählt aus der Gruppe, bestehend aus C1-C5-Alkylgruppen, C1-C5-Alkoxygruppen, Cyanogruppen, Amingruppen, Phenoxygruppen, Phenylgruppen und Halogengruppen;
    C3-C60-Heteroarylgruppen, substituiert mit zumindest einem Substituenten, gewählt aus der Gruppe, bestehend aus C1-C5-Alkylgruppen, C1-C5-Alkoxygruppen, Cyanogruppen, Amingruppen, Phenoxygruppen, Phenylgruppen, Halogengruppen und C5-C10-Heteroarylgruppen; und
    C5-C50-Arylamingruppen, substituiert mit zumindest einem Substituenten, gewählt aus der Gruppe, bestehend aus C1-C5-Alkylgruppen, C1-C4-Alkoxygruppen, Cyanogruppen, Amingruppen, Phenoxygruppen, Phenylgruppen und Halogengruppen.
  3. Heterocyclische Verbindung nach Anspruch 2, wobei jedes von R3-R5 und R7-R10 Wasserstoffatome sind oder wobei jedes von R13-R15 und R17-R20 Wasserstoffatome sind.
  4. Heterocyclische Verbindung nach Anspruch 1, wobei jedes von R3-R10 Wasserstoffatome sind oder jedes von R13-R20 Wasserstoffatome sind.
  5. Heterocyclische Verbindung nach einem der Ansprüche 1 bis 4, wobei X1 oder X2 aus der Gruppe gewählt ist, die besteht aus:
    unsubstituierten monocyclischen bis tetracyclischen Arylgruppen, gewählt aus der Gruppe, bestehend aus unsubstituierten Phenylgruppen, unsubstituierten Naphthylgruppen, unsubstituierten Biphenylgruppen, unsubstituierten Terphenylgruppen, unsubstituierten Anthracenylgruppen, unsubstituierten Fluorenylgruppen, unsubstituierten Carbazolylgruppen und unsubstituierten Pyrenylgruppen;
    unsubstituierten C3-C60-Heteroarylgruppen;
    monocyclischen bis tetracyclischen Arylgruppen, gewählt aus der Gruppe, bestehend aus Phenylgruppen, Naphthylgruppen, Biphenylgruppen, Terphenylgruppen, Anthracenylgruppen, Fluorenylgruppen, Carbazolylgruppen und Pyrenylgruppen, substituiert mit zumindest einem Substituenten, gewählt aus der Gruppe, bestehend aus C1-C5-Alkylgruppen, C1-C5-Alkoxygruppen, Cyanogruppen, Amingruppen, Phenoxygruppen, Phenylgruppen und Halogengruppen; und
    C3-C60-Heteroarylgruppen, substituiert mit zumindest einem Substituenten, gewählt aus C1-C5-Alkylgruppen, C1-C5-Alkoxygruppen, Cyanogruppen, Amingruppen, Phenoxygruppen, Phenylgruppen, Halogengruppen und C5-C10-Heteroarylgruppen.
  6. Heterocyclische Verbindung nach einem der Ansprüche 1 bis 5, wobei jedes von R1, R2, R11 und R12 jeweils unabhängig aus der Gruppe gewählt ist, die aus Methylgruppen und Phenylgruppen besteht.
  7. Heterocyclische Verbindung nach einem der Ansprüche 1 bis 5, wobei jedes von R1 und R2 eine Methylgruppe oder eine Phenylgruppe ist oder wobei jedes von R11 und R12 eine Methylgruppe oder eine Phenylgruppe ist.
  8. Heterocyclische Verbindung nach Anspruch 1, wobei die durch Formel 1 oder Formel 2 dargestellte Verbindung eine Verbindung ist, die aus der Gruppe gewählt ist, die aus den Verbindungen 10, 17, 27, 33 und 42 besteht:
    Figure imgb0050
    Figure imgb0051
  9. Organische lichtemittierende Vorrichtung, umfassend:
    eine erste Elektrode;
    eine zweite Elektrode; und
    eine oder mehrere organische Schichten zwischen der ersten Elektrode und der zweiten Elektrode, wobei die eine oder mehreren organischen Schichten zumindest eine organische Schicht umfassen, die die heterocyclische Verbindung nach einem der Ansprüche 1 bis 8 umfasst.
  10. Organische lichtemittierende Vorrichtung nach Anspruch 9, wobei die zumindest eine organische Schicht, die die heterocyclische Verbindung umfasst, unter Anwendung eines Nassverfahrens ausgebildet worden ist.
  11. Organische lichtemittierende Vorrichtung nach Anspruch 9 oder Anspruch 10, wobei die zumindest eine organische Schicht, die die heterocyclische Verbindung umfasst, eine Elektroneninjektionsschicht oder eine Elektronentransportschicht umfasst; oder wobei die zumindest eine organische Schicht, die die heterocyclische Verbindung umfasst, einen einzelnen Film mit sowohl einer Elektroneninjektionsfunktion als auch einer Elektronentransportfunktion umfasst.
  12. Organische lichtemittierende Vorrichtung nach einem der Ansprüche 9 bis 11, wobei die zumindest eine organische Schicht, die die heterocyclische Verbindung umfasst, eine Emissionsschicht umfasst, und wahlweise die heterocyclische Verbindung ein Wirt für eine fluoreszierende oder phosphoreszierende Vorrichtung ist oder ein fluoreszierender Dotierstoff ist; und/oder die zumindest eine organische Schicht, die die heterocyclische Verbindung umfasst, weiterhin eine Elektroneninjektionsschicht oder eine Elektronentransportschicht umfasst, wobei die Emissionsschicht eine Anthracenverbindung oder eine Arylaminverbindung oder eine Styrylverbindung umfasst.
  13. Organische lichtemittierende Vorrichtung nach einem der Ansprüche 9 bis 12, wobei die zumindest eine organische Schicht, die die heterocyclische Verbindung umfasst, eine Emissionsschicht, und eine Elektroneninjektionsschicht oder eine Elektronentransportschicht, umfasst, wobei die Emissionsschicht eine Rotemissionsschicht, eine Grünemissionsschicht, eine Blauemissionsschicht oder eine Weißemissionsschicht umfasst, die eine phosphoreszierende Verbindung umfasst.
  14. Organische lichtemittierende Vorrichtung nach einem der Ansprüche 9 bis 13, wobei die eine oder mehreren organischen Schichten zumindest eine Schicht umfassen, die gewählt ist aus der Gruppe, bestehend aus einer Löcherinjektionsschicht, einer Löchertransportschicht, einer Elektronen blockierenden Schicht, einer Emissionsschicht, einer Löcher blockierenden Schicht, einer Elektronentransportschicht und einer Elektroneninjektionsschicht, wobei wahlweise die organische lichtemittierende Vorrichtung eine Struktur erste Elektrode / Löcherinjektionsschicht / Emissionsschicht / zweite Elektrode, eine Struktur erste Elektrode / Löcherinjektionsschicht / Löchertransportschicht / Emissionsschicht / Elektronentransportschicht / zweite Elektrode oder eine Schichtstruktur erste Elektrode / Löcherinjektionsschicht / Löchertransportschicht / Emissionsschicht / Elektronentransportschicht / Elektroneninjektionsschicht / zweite Elektrode aufweist.
  15. Flachtafel-Anzeigevorrichtung, umfassend die organische lichtemittierende Vorrichtung nach einem der Ansprüche 9 bis 14, wobei die erste Elektrode der organischen lichtemittierenden Vorrichtung elektrisch mit einer Source-Elektrode oder einer Drain-Elektrode eines Dünnschichttransistors verbunden ist.
EP10251547.5A 2009-09-04 2010-09-03 Phenanthro[2,3-b]pyrrole und Phenanthro[3,2-b]pyrrole für organische lichtemittierende Vorrichtungen Active EP2292601B1 (de)

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KR101117724B1 (ko) 2012-03-07
JP5676182B2 (ja) 2015-02-25
CN102010410A (zh) 2011-04-13
US20110057177A1 (en) 2011-03-10
JP2011057673A (ja) 2011-03-24
US8889267B2 (en) 2014-11-18
KR20110025440A (ko) 2011-03-10
CN102010410B (zh) 2015-06-17

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